Aequilibrium Lite Insulation Jacket Men's

$129.58 ~~$209~~ In stock

The Aequilibrium Lite Insulation Jacket is designed for swift starts and technical climbs, offering optimal warmth-to-weight ratio and freedom of movement. It combines Pertex® Quantum and Polartec® Power Grid™ fabrics for breathability and warmth, and features harness-compatible pockets and a hood that can be worn over your helmet for practicality on the wall.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Eli S. ★★★★★ Oct 20, 2026

The Pertex® Quantum fabric handled a light drizzle without wetting out, which was a pleasant surprise for such a lightweight piece. The Polartec® Po insulation kept me warm during a chilly morning summit push without restricting my arm movement.

Ellie Z. ★★★★★ Oct 19, 2026

I’ve taken this jacket up two alpine starts now, and the Polartec® insulation keeps me warm without any bulk when I’m reaching for holds. The Pertex® shell sheds light spindrift well, and the freedom of movement is noticeably better than my old hardshell.

Claire ★★★★★ Oct 18, 2026

The Pertex® fabric feels surprisingly durable for such a lightweight jacket, and it packs down small enough to stuff in my climbing pack without any bulk. I wore it on a chilly alpine start last weekend and stayed warm while scrambling without any restriction in my shoulders.